:root {
  --red: #d71920;
  --red-dark: #a70f16;
  --ink: #17202a;
  --muted: #667085;
  --line: #e5e7eb;
  --paper: #ffffff;
  --soft: #f6f7f9;
  --green: #28705a;
  --gold: #b27a2c;
  --shadow: 0 18px 45px rgba(23, 32, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    "Noto Sans SC",
    "Microsoft YaHei",
    "PingFang SC",
    Arial,
    sans-serif;
  line-height: 1.65;
  background: var(--paper);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 74px;
  padding: 12px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0;
}

.brand img {
  width: 86px;
  height: 44px;
  object-fit: contain;
}

.brand span {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.4vw, 34px);
  color: #3b4652;
  font-size: 15px;
}

.site-nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover {
  color: var(--red);
  border-color: var(--red);
}

.hero {
  min-height: calc(80vh - 74px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  align-items: center;
  gap: clamp(32px, 6vw, 92px);
  padding: clamp(34px, 5vw, 56px) clamp(20px, 6vw, 86px) 34px;
  background:
    linear-gradient(120deg, rgba(215, 25, 32, 0.08), transparent 45%),
    linear-gradient(180deg, #fff 0%, #f8fafc 100%);
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--red);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 24px;
  font-size: clamp(40px, 5.2vw, 66px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.18;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 650px;
  margin-bottom: 34px;
  color: #3b4652;
  font-size: clamp(17px, 1.8vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid var(--red);
  border-radius: 6px;
  font-weight: 800;
}

.button.primary {
  color: #fff;
  background: var(--red);
}

.button.ghost {
  color: var(--red);
  background: #fff;
}

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 340px;
  padding: clamp(26px, 5vw, 52px);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.68)),
    radial-gradient(circle at 80% 20%, rgba(40, 112, 90, 0.18), transparent 34%),
    #eef1f4;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-visual::before {
  position: absolute;
  inset: 32px;
  content: "";
  border: 1px solid rgba(215, 25, 32, 0.16);
}

.hero-visual img {
  position: relative;
  width: min(440px, 84%);
  mix-blend-mode: multiply;
}

.hero-panel {
  position: absolute;
  right: 28px;
  bottom: 28px;
  display: grid;
  gap: 2px;
  min-width: 150px;
  padding: 18px;
  color: #fff;
  background: var(--ink);
  border-left: 5px solid var(--red);
}

.hero-panel strong {
  font-size: 34px;
  line-height: 1;
}

.hero-panel span {
  font-size: 14px;
}

.section {
  padding: clamp(66px, 9vw, 118px) clamp(20px, 6vw, 86px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.intro {
  background: #fff;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}

.intro-copy {
  color: #3b4652;
  font-size: 18px;
}

.facts {
  display: grid;
  gap: 14px;
}

.facts div {
  padding: 22px;
  background: var(--soft);
  border-left: 4px solid var(--red);
}

.facts span,
.contact address span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 14px;
}

.facts strong,
.contact address strong {
  display: block;
  font-size: 20px;
  line-height: 1.35;
}

.business {
  background: #f7f8fa;
}

.business-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.business-card {
  min-height: 250px;
  padding: 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.business-card span {
  display: inline-block;
  margin-bottom: 26px;
  color: var(--gold);
  font-weight: 900;
  font-size: 28px;
}

.business-card p,
.strength-content p,
.strength-list span,
.contact p,
.leader p {
  color: var(--muted);
}

.strength {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(300px, 1.05fr);
  gap: clamp(30px, 6vw, 86px);
  align-items: center;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(23, 32, 42, 0.94), rgba(23, 32, 42, 0.9)),
    linear-gradient(135deg, var(--red-dark), var(--green));
}

.strength-content p,
.strength-list span {
  color: rgba(255, 255, 255, 0.76);
}

.strength-list {
  display: grid;
  gap: 16px;
}

.strength-list div {
  padding: 22px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.strength-list strong {
  display: block;
  margin-bottom: 6px;
  font-size: 22px;
}

.team {
  background: #fff;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.leader {
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 28px rgba(23, 32, 42, 0.08);
}

.leader img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  background: #e5e7eb;
}

.leader div {
  padding: 22px 24px 24px;
  border-top: 4px solid var(--red);
}

.leader p {
  margin-bottom: 0;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(300px, 1.1fr);
  gap: clamp(30px, 6vw, 82px);
  align-items: start;
  background: var(--soft);
}

.contact address {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 28px;
  font-style: normal;
  background: #fff;
  border-top: 5px solid var(--red);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(23, 32, 42, 0.08);
}

.contact address strong + span {
  margin-top: 16px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 96px;
  padding: 26px 20px;
  color: #5b6673;
  border-top: 1px solid var(--line);
}

.site-footer img {
  width: 86px;
  height: 42px;
  object-fit: contain;
}

@media (max-width: 980px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero,
  .intro-grid,
  .strength,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .business-grid,
  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .brand span {
    white-space: normal;
    font-size: 16px;
  }

  .site-nav {
    gap: 18px;
    font-size: 14px;
  }

  .hero-visual {
    min-height: 330px;
  }

  .hero-panel {
    right: 18px;
    bottom: 18px;
  }

  .business-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
    text-align: center;
  }
}